// --------------------------------------// i2c_scanner//// This program (or code that looks like it)// can be found in many places.// For example on the Arduino.cc forum.// The original author is not know.//// This sketch tests the standard 7-bit addresses// from 0 to 127. Devices with higher bit address// might not be seen properly.//// Adapted to be as simple as possible by Arduino.cc user Krodal//// June 2012// Using Arduino 1.0.1//